8120212 has 6 divisors (see below), whose sum is σ = 14210378. Its totient is φ = 4060104.

The previous prime is 8120209. The next prime is 8120213. The reversal of 8120212 is 2120218.

It can be written as a sum of positive squares in only one way, i.e., 4682896 + 3437316 = 2164^2 + 1854^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015023 + ... + 1015030.

Almost surely, 2^8120212 is an apocalyptic number.

It is an amenable number.

8120212 is a deficient number, since it is larger than the sum of its proper divisors (6090166).

8120212 is a wasteful number, since it uses less digits than its factorization.

8120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030057 (or 2030055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 8120212 is about 2849.5985682197. The cubic root of 8120212 is about 200.9967904572.

It can be divided in two parts, 8120 and 212, that multiplied together give a triangular number (1721440 = T₁₈₅₅).

The spelling of 8120212 in words is "eight million, one hundred twenty thousand, two hundred twelve".